17178-1940 BHA  18

 
 
17h 17m 50.58s -19 39' 56.0" P.A. 39 sep 5.8 mag 11.49,11.90
 
 
Coord 2000
17178-1940
Discov num
BHA  18
Comp
Coord arcsec 2000
17 17 50.58 -19 39 56.0
Date first
1917
Date last
2000
Obs
6
Pa first
41
Pa last
39
P.A. Now (θ)
39°
Sep first
5.3
Sep last
5.8
Sep. Now (ρ)
5.8"
Mag pri
11.49
Mag sec
11.90
delta mag (ΔM)
0.41
Spectral class
Pri motion ra
-003
Sec motion ra
+059
Pri motion dec
-019
Sec motion dec
+074
Notes
rPM=1.181
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
39
Precise sep
5.83
Constellation
Ophiuchus
Tycho2
6241-00367-1
last precise pa
39
last precise sep
5.83
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17178-1940 BHA 18 1999 4 39 5.9 11.49 11.90 D 171750.58-193956.0
17178-1940 BHA 18 2000 6 39 5.8 11.49 11.90 171750.58-193956.0

If you need more information about this double, apply for a data request form to the WDS.